... Description Voice chips--voice recording ic, record chip,40 Second Sound Chip WTV040 is 40 seconds OTP chipFeatures* it can use in ... most of products which voice is needed(not more than 40 seconds) * Equip with PC software and writer, customers can program ...

Detailed Product Description The picture shows special low cement refractory castable S-1. The chemical content is Al2O3 75% and ZrO2 3%.Double Egret is the specialized manufacturer and exporter of refracotry and insulation material in north of China. Our products mainly include refractory castable, refractory brick, insulating brick. For refractory castable, Double Egert has the production ...